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Impurities & Reference Standards

API Impurities

Source 1942 api impurities for research, QC and production, documented with COA and SDS.

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Reference Standard

Diclofenac Impurity 5 chemical structure

Diclofenac Impurity 5

CAS: 2180935-53-7
Formula: C₂₈H₂₀Cl₄N₂O₄
MW: 590.3 g/mol

VQ-030181

Reference Standard

Diclofenac Impurity 9 chemical structure

Diclofenac Impurity 9

CAS: 172494-87-0
Formula: C₁₃H₁₁Cl₂N
MW: 252.14 g/mol

VQ-043881

Reference Standard

Diclofenac Impurity A chemical structure

Diclofenac Impurity A

CAS: 15362-40-0
Formula: C₁₄H₉Cl₂NO
MW: 278.1 g/mol

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Reference Standard

Diclofenac Indole-2,3-dione Impurity chemical structure

Diclofenac Indole-2,3-dione Impurity

CAS: 24542-74-3
Formula: C₁₄H₇Cl₂NO₂
MW: 292.1 g/mol

VQ-025295

Reference Standard

Diclofenac Isopropyl Ester chemical structure

Diclofenac Isopropyl Ester

CAS: 66370-79-4
Formula: C₁₇H₁₇Cl₂NO₂
MW: 338.2 g/mol

VQ-022372

Reference Standard

Diclofenac Related Compound 14 chemical structure

Diclofenac Related Compound 14

CAS: 3644-56-2
Formula: C₈H₆Cl₃NO
MW: 238.5 g/mol

VQ-048010

Reference Standard

Diclofenamide Mono Amide Impurity chemical structure

Diclofenamide Mono Amide Impurity

CAS: 23815-28-3
Formula: C₆H₅Cl₂NO₂S
MW: 226.08 g/mol

VQ-036680

Reference Standard

Dicloxacillin Sodium - Impurity A chemical structure

Dicloxacillin Sodium - Impurity A

CAS: 42947-69-3
Formula: C₁₉H₁₉Cl₂N₃O₆S
MW: 488.3 g/mol

VQ-030185

Reference Standard

Dicobalt Edetate chemical structure

Dicobalt Edetate

CAS: 36499-65-7
Formula: C₁₀H₁₂Co₂N₂O₈
MW: 406.08 g/mol

VQ-040551

Reference Standard

Dicresulene chemical structure

CAS: 78480-14-5
Formula: C₁₅H₁₆O₈S₂
MW: 388.4 g/mol

VQ-041545

Reference Standard

Dicyano Impurity chemical structure

Dicyano Impurity

CAS: 161718-81-6
Formula: C₁₂H₁₂N₂O
MW: 200.24 g/mol

VQ-048345

Reference Standard

Dicyclohexyl Ketone chemical structure

Dicyclohexyl Ketone

CAS: 119-60-8
Formula: C₁₃H₂₂O
MW: 194.31 g/mol

VQ-030187

Reference Standard

Dicyclohexylcarbinol chemical structure

Dicyclohexylcarbinol

CAS: 4453-82-1
Formula: C₁₃H₂₄O
MW: 196.33 g/mol

VQ-030188

Reference Standard

Didecylamine Hydrochloride chemical structure

Didecylamine Hydrochloride

CAS: 2486-84-2
Formula: C₂₀H₄₄ClN
MW: 334 g/mol

VQ-025082

Reference Standard

Didefluoro Nebivolol chemical structure

Didefluoro Nebivolol

CAS: 129101-33-3
Formula: C₂₂H₂₇NO₄
MW: 369.5 g/mol

VQ-026847

Reference Standard

Didehydro Clindamycin chemical structure

Didehydro Clindamycin

CAS: 1440605-51-5
Formula: C₁₈H₃₁ClN₂O₅S
MW: 423 g/mol

VQ-025021

Reference Standard

Didehydro Cortistatin A chemical structure

Didehydro Cortistatin A

CAS: 1032315-06-2
Formula: C₃₀H₃₄N₂O₃
MW: 470.6 g/mol

VQ-040701

Reference Standard

Dideiodo Amiodarone Hydrochloride chemical structure

Dideiodo Amiodarone Hydrochloride

CAS: 95820-13-6
Formula: C₂₅H₃₂ClNO₃
MW: 430 g/mol

VQ-029108

Reference Standard

Didestriazole anastrozole dimer impurity chemical structure

Didestriazole anastrozole dimer impurity

CAS: 918312-71-7
Formula: C₂₆H₂₉N₃
MW: 383.5 g/mol

VQ-024298

Reference Standard

Didodecyl 3,3'-Thiodipropionate chemical structure

Didodecyl 3,3'-Thiodipropionate

CAS: 123-28-4
Formula: C₃₀H₅₈O₄S
MW: 514.8 g/mol

VQ-039197

Reference Standard

Didodecyl 3,3′-sulfinyldipropionate chemical structure

Didodecyl 3,3′-sulfinyldipropionate

CAS: 17243-14-0
Formula: C₃₀H₅₈O₅S
MW: 530.8 g/mol

VQ-051542

Reference Standard

Diethyl chemical structure

CAS: 618061-76-0
Formula: C₂₄H₂₇ClFN₄O₆P
MW: 552.9 g/mol

VQ-021448

Reference Standard

Diethyl (4-(dimethylamino)benzoyl)-L-glutamate chemical structure

Diethyl (4-(dimethylamino)benzoyl)-L-glutamate

CAS: 909874-43-7
Formula: C₁₈H₂₆N₂O₅
MW: 350.4 g/mol

VQ-038362

Reference Standard

Diethyl 1,1-Cyclobutanedicarboxylate chemical structure

Diethyl 1,1-Cyclobutanedicarboxylate

CAS: 3779-29-1
Formula: C₁₀H₁₆O₄
MW: 200.23 g/mol

VQ-035311

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